I've got Buddypress and membership on my site, and what

Hey Guys,

I've got Buddypress and membership on my site, and what I want to do is the following:

When a visitor comes to the site, they can click on members and see my members directory, but when they click on a member, I want membership to block them from seeing a members individual profile

so for instance say I have a member 'bob' then on
http://www.websitename.com/members/ the unlogged in visitor should see a list of members, including bob.

but when they click on bob's profile they should not be able to view it, so http://www.websitename.com/members/bob should be protected, this needs to be done for every member, not just bob.

how do i do it, can you give me an example of the setting please?

Cheers

Wayne